/*
 * Copyright (c) 2010, okazoh_tk. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  - Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  - Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "alkes/tree/Composite.h"

namespace alkes {


#if defined(AL_TRACE_UPDATE_NODE)
#define BEGIN_UPDATE()  AL_PRINT_NODE(" update begin")
#define END_UPDATE()    AL_PRINT_NODE(" update end")
#define SKIP_UPDATE()   AL_PRINT_NODE(" update skipped")
#else
#define BEGIN_UPDATE()  do{}while(0)
#define END_UPDATE()    do{}while(0)
#define SKIP_UPDATE()   do{}while(0)
#endif
#if defined(AL_TRACE_RENDER_NODE)
#define BEGIN_RENDER()  AL_PRINT_NODE(" render begin")
#define END_RENDER()    AL_PRINT_NODE(" render end")
#define SKIP_RENDER()   AL_PRINT_NODE(" render skipped")
#else
#define BEGIN_RENDER()  do{}while(0)
#define END_RENDER()    do{}while(0)
#define SKIP_RENDER()   do{}while(0)
#endif

Composite::Composite()
{
    setSystemFlag(FLAG_IS_COMPOSITE);
}

bool Composite::preRender(GraphicsContext& gc, Iterator& reverse_iter)
{
    if (!isVisible())
        return false;

    if (isRendering())
    {
        AL_ERROR("%s(0x%08p) is a recursive node.", this->getClassName(), this);
        return false;
    }
    bool ret = onPreRender(gc, reverse_iter);

    if (ret)
    {
        setSystemFlag(FLAG_RENDERING);
        BEGIN_RENDER();
    }
    else
    {
        setDirty(false);
        SKIP_RENDER();
    }

    return ret;
}

void Composite::postRender(GraphicsContext& gc, bool rendered_child)
{
    END_RENDER();
    clearSystemFlag(FLAG_RENDERING);
    onPostRender(gc, rendered_child);
    setDirty(false);
}

bool Composite::preUpdate(UpdateContext& uc, Iterator& reverse_iter)
{
    if (isRendering())
    {
        AL_ERROR("%s(0x%08p) is a recursive node.", this->getClassName(), this);
        return false;
    }

    bool ret= onPreUpdate(uc, reverse_iter);

    if (ret)
    {
        setSystemFlag(FLAG_UPDATING);
        BEGIN_UPDATE();
    }
    else
    {
        SKIP_UPDATE();
    }

    return ret;
}

bool Composite::postUpdate(UpdateContext& uc, bool updated_child)
{
    END_UPDATE();
    clearSystemFlag(FLAG_UPDATING);
    return onPostUpdate(uc, updated_child);
}

}

